Huawei H12-211-ENU HCIA-Routing&Switching(Huawei Certified ICT Associate) Online Training

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1. A network administrator has captured a data frame in the network with the destination MAC address of 01-00-5E-A0-B1-C3.

The correct statement about this MAC address is ().

It is a unicast MAC address

It is a broadcast MAC address

It is a multicast MAC address

It is an illegal MAC address

2. Which of the following is not the working principle of CSMA/CD?

Listen While Talk

RRetransmission after a fixed time delay

Conflict suspension

Retransmission after random delay

Listen Before Talk

3. The IPv4 address of the host is 200.200.200.201/30.

Which host with the following IPv4 address and its communication do not need to be forwarded by the router?

200.200.200.1

200.200.200.202

200.200.200.200

200.200.200.203

4. If the Ethernet data frame is Length/Type=0x0806, which of the following statement is correct? (Multiple Choice)

This data frame is an Ethernet II frame.

This data frame is an IEEE 802.3 frame

The source MAC address of this data frame must not be FFFF-FFFF-FFFF

The destination MAC address of this data frame must be FFFF-FFFF-FFFF

5. When a router enabled with Proxy ARP function receives an ARP request packet and finds that the requested IP address is not its own, what actions are performed? (Multiple Choice)

If there is a route to the destination address, send its own MAC address to the ARP requester.

Discard the message

Broadcast ARP request message

Find if there is a route to the destination address or not

6. Which of the following storage media are commonly used by Huawei routers? (Multiple Choice)

SDRAM

NVRAM

Flash

Hard Disk

SD Card

7. The VRP operating system commands are divided into four levels: access level, monitoring level, configuration level, and management level.

Which level can run various business configuration commands but cannot operate the file system?

Access level

Monitoring level

Configuration level

Management level

8. On the VRP interface, you cannot use the command delete or unreserved vrpcfg.zip to delete files. You must empty them in the recycle bin to delete files completely.

TRUE

FALSE

9. The switch MAC address table is existing as follows, which of the following statements is correct?

The MAC address 5489-9885-1838 is manually configured by the administrator.

The MAC address 5489-9811-0b49 is manually configured by the administrator

The MAC address 5489-3891-1450 is manually configured by the administrator.

After the switch is restarted, all MAC addresses need to be re-learned.

10. As shown in the figure below, the switch starts the STP protocol.

When the network is stable, which of the following statements are correct? (Multiple Choice)

SWB is the root bridge in this network

SWA is the root bridge in this network

Both ports of SWB are in Forwarding state.

Both ports of SWC are in Forwarding state.

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11. The STP protocol is enabled on both switches shown in the figure below.

An engineer made the following conclusions on this network.

Do you think what is the correct conclusion? (Multiple Choice)

The G0/0/2 port of SWB is stable in the Forwarding state.

The G0/0/2 port of SWA is stable in the Forwarding state.

Both ports of SWB are designated ports.

The G0/0/3 port of SWA is stable in the Forwarding state.

Both ports of SWA are designated ports.

12. Compared to STP protocol, which kind of port role is added in RSTP protocol? (Multiple Choice)

Alternate port

Backup port

Root port

Designated port

13. As shown in the figure, the two switches use the default parameters to run STP. On Switch A, the configuration command STP root primary is used. On the switch B, the configuration command STP priority 0 is used.

Which of the following ports will be blocked?

G0/0/2 of switch A

G0/0/1 of switch B

G0/0/1 of switch A

E0/0/3 of HUB

14. Which of the following parameters does not the configuration BPDU packet of the STP protocol?

Port ID

Bridge ID

VLAN ID

Root ID

15. By default, how many seconds are the Forward Delay of STP protocol?

16. Which of the following parameters are used in the switched network that runs the STP protocol when performing spanning tree calculations? (Multiple Choice)

Root path cost

Port ID

Bridge ID

Forward Delay

17. In the STP protocol, assume that all switches are configured with the same priority. The MAC address of switch 1 is 00-e0-fc-00-00-40, and the MAC address of switch 2 is 00-e0-fc-00-00-10, the MAC address of switch 3 is 00-e0-fc-00-00-20, and the MAC address of switch 4 is 00-e0-fc-00-00-80, then the root switch should be ().

Switch 1

Switch 2

Switch 3

Switch 4

18. The network shown in the figure below, the MAC address of the switch has been marked. Enter the command stp root secondary on the SWD switch.

Which of the following switches will become the root bridge of this network?

SWA

SWB

SWC

SWD

19. Both the two switches shown in the following figure have STP enabled.

Which port will eventually be in the Blocking state?

G0/0/2 port of SWA

G0/0/3 port of SWA

G0/0/2 port of SWB

G0/0/3 port of SWB

20. The network as shown in the following figure, after the OSPF protocol is stable, what is the neighbor status of Router A and Router B?

2-way

Down

Full

Attempt

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21. In the network shown below, which of the following commands can be entered in the router to enable Host A to ping through Host B? (Multiple Choice)

Router A: ip route-static 10.0.12.5 255.255.255.252 11.0.12.1 Router B: ip route-static 10.0.12.1 255.255.255.252 11.0.12.2

Router A: ip route-static 0.0.0.0 0.0.0 11.0.12.1 Router B: ip route-static 0.0.0.0 0.0.0 11.0.12.2

Router A: ip route-static 10.0.12.5 255.255.255.252 11.0.12.2 Router B: ip route-static 10.0.12.1 255.255.255.252 11.0.12.1

Router A: ip route-static 0.0.0.0 0.0.0 11.0.12.2 Router B: ip route-static 0.0.0.0 0.0.0 11.0.12.1

22. The network as shown in the following figure, the following configurations exist on the Router A.

ip route-static 10.0.2.2 255.255.255.25510.0.12.2

ip route-static 10.0.2.2 255.255.255.255 10.0.21.2 preference 70

Which of the following statements are correct? (Multiple Choice)

The NextHop that reaches 10.0.2.2 in the routing table of Router A is 10.0.12.2.

If the G0/0/1 port is Down, the route that Router A reaches 10.0.0.2 is changed to 10.0.21.2.

The NextHop that reaches 10.0.2.2 in the routing table of Router A is 10.0.21.2.

If the G0/0/2 port is Down, the route that Router A reaches 10.0.0.2 is changed to 10.0.12.2.

23. Which of the following OSPF versions are suitable for IPv6?

OSPFv2

OSPFv3

OSPFv4

OSPFv1

24. T he network as shown in the following figure, which of the following commands can enable RouterA to forward a packet with the destination IP address of 10.0.0.3? (Multiple Choice)

ip route-static 10.0.3.3 255.255.255.255 10.0.12.2

ip route-static 10.0.2.2 255.255.255.255 10.0.12.2 ip route-static 10.0.3.3 255.255.255.255 10.0.2.2

ip route-static 0.0.0.0 0.0.0.0 10.0.12.2

ip route-static 10.0.3.3 255.255.255.255 10.0.2.2

25. Which of the following about the statement of static routing are incorrect?

Manual configuration by network administrator

Inter-route information needs to be exchanged between routers

Can not automatically adapt to changes in network topology

Low system performance requirements

26. Which of the following commands can be used to check whether OSPF has correctly established neighbor relationships?

display ospf neighbor

display ospf brief

display ospf peer

display ospf interface

27. For multiple paths to the same destination network, the router needs to select by comparing the size of the Cost value. If the value of the Cost is the same, then select according to the size of the Preference value.

True

False

28. As shown in the figure below, Host A and Host B cannot communicate.

True

False

29. For multiple paths to the same destination network, the router needs to select by comparing the size of the Preference value. If the Preference is the same, then select according to the size of the Cost value.

True

False

30. The routing table consists of multiple elements.

What is wrong with the following statement?

Proto shows to learn the routing protocol of this route

NextHop shows the local interface address of this route

Pre shows the priority of this routing protocol

Destination/Mask shows the address and mask length of the destination network/host

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31. The correct description of the following is (). (Multiple Choice)

The next hop in the routing table is redundant. If there is an outgoing interface, the packet can be forwarded.

Routes obtained through different routing protocols have different priorities

The metrics defined by different routing protocols are not comparable

The metrics defined by different routing protocols are comparable

32. Ip route-static 10.0.2.2 255.255.255.25510.0.12.2 preference 20, about this command, which is the correct statement? (Multiple Choice)

The route can guide the data packets forwarding with the destination IP address of 10.0.2.2.

The route can guide the data packets forwarding with the destination IP address 10.0.12.2.

The priority of the route is 20

The NextHop of the route is 10.0.12.2

33. The network as shown in the following figure, when the network administrator performs traffic planning, it is expected that the packets sent by Host A to Host B will be connected to G0/0/3 interface between the routers. The packets sent by Host B to Host A go pass the G0/0/4 interface between routers.

Which of the following commands can implement this requirement? (Multiple Choice)

Router A: ip route-static 10.0.12.5 255.255.255.252 11.0.12.2 Router B: ip route-static 10.0.12.1 255.255.255.252 11.0.12.5

Router A: ip route-static 0.0.0.0 0.0.0.0 11.0.12.6 Router B: ip route-static 0.0.0.0 0.0.0.0 11.0.12.1

Router A: ip route-static 10.0.12.5 255.255.255.252 11.0.12.6 Router B: ip route-static 10.0.12.1 255.255.255.252 11.0.12.1

Router A: ip route-static 0.0.0.0 0.0.0.0 11.0.12.2 Router B: ip route-static 0.0.0.0 0.0.0.0 11.0.12.5

34. If the IP address requested by the DHCP client is already occupied, which packet will the DHCP server use as the response?

DHCP ACK

DHCP RELEASE

DHCP NAK

DHCP DISCOVER

35. The DHCP REQUEST message must be sent in broadcast form.

True

False

36. Which DHCP message does the DHCP client send when it wants to leave the network?

DHCP DISCOVER

DHCP RELEASE

DHCP REQUEST

DHCP ACK

37. Huawei devices can be managed using the Telnet protocol.

Which of the following statements is correct about this management function?

The port number used by Telnet defaultly is 22, which cannot be modified.

Telnet must enable the VTY interface, and the maximum is 15

Telnet does not support authentication based on username and password

Telnet does not support deploying ACLs to increase security.

38. As shown, the topology and the configuration on the switch interconnect port, you can determine that the data frame labeled as VLAN 10 can be forwarded normally between the two switches.

True

False

39. The output information of a port of the switch is as follows.

What is wrong with the following statement?

If the data frame carries a VLAN TAG of 200, the switch strips the VLAN TAG and sends out

If the port receives a data frame without VLAN TAG, the switch needs to add VLAN TAG100.

The link type of the port is Hybrid type.

If the data frame carries a VLAN TAG of 100, the switch strips the VLAN TAG and sends out.

40. Which information of the data frame is judged by the VLANIF interface to perform Layer 2 forwarding or Layer 3 forwarding?

Destination MAC

Source IP

Destination port

Source MAC

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41. Packets forwarded between two routers must not carry VLAN TAG.

True

False

42. The Priority field in the VLAN tag identifies the priority of the data frame.

What is the priority range?

0-15

0-63

0-7

0-3

43. What is the characteristic of port-based VLAN partition?

Add a VLAN tag to the data frame based on the IP address carried in the packet.

Assign the VLAN ID according to the protocol type and encapsulation format of the data frame.

The host moving location no need to reconfigure the VLAN

The host moving location needs to reconfigure VLAN

44. The Protocol field in the PPP frame format is 0xC223, indicating that the protocol is:

CHAP

PAP

NCP

LCP

45. The configuration information of a router is as follows.

Which combination of username and password used by the peer router can enable PPP channel associated to complete authentication?

Username: test1 Password: test1

Username: test Password: test

Username: test2 Password: test

Username: test2 Password: test2

46. Which method does the PPPoE client use to send PADI packets to the Server?

Broadcast

Unicast

Multicast

Anycast

47. The network shown in the following figure requires the network where the host is located to access the Internet through Easy IP.

Which of the following ACLs should be used on the G0/0/3 interface of the router?

acl number 2000 rule 5 permit source 10.0.13.1 0.0.0.0 #

acl number 2000 rule 5 permit source 10.0.12.0 0.0.0.255 #

acl number 2000 rule 5 permit source 10.0.12.1 0.0.0.0

acl number 2000 rule 5 permit source 10.0.13.0 0.0.0.255

48. The configuration information of a router is as follows.

Which of the following statement is correct? (Multiple Choice)

The domain which domain name is huawei does not use the accounting scheme.

If the username huawei is used for authentication, the password needs to be 654321.

The authorization mode used by the domain which domain name is huawei is local authorization.

The authentication mode used by the domain which domain name is huawei is local authentication.

49. The IKE protocol is used to establish an SA for IPsec auto-negotiation, which can support identity authentication when the address of the initiator of the negotiation changes dynamically.

True

False

50. By default, in the SNMP protocol, which port number is used by the proxy process to send an alarm message to the NMS?

163

161

162

164

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51. If the result of the packet matching ACL is "reject", the packet is finally discarded.

True

False

52. In terms of security, IPsec tunnel mode is superior to IPsec transport mode.

True

False

53. What is the status of the OSPFv3 adjacency relationship after it is established?

2-way

Full

Down

54. The network as shown in the following figure, when OSPFv3 is enabled on all interfaces, Router A and Router B cannot establish adjacencies.

True

False

55. Which of the following fields are fields that exist in both IPv6 and IPv4 headers? (Multiple Choice)

Source Address

Version

Destination Address

Next Header

56. What is the destination address of the DHCPv6 request packet?

FF01::1:2

FF02::1:2

FF02::1

FF02::2

57. By default, how many seconds is the period of OSPFv3 HELLO packet sending on the Ethernet link?

58. Which of the following fields does the MPLS header include? (Multiple Choice)

Label

EXP

TTL

Tos

59. SR (SegmentRouting) defines a destination address prefix/node and adjacency in the network as segments, and assigns SIDs (Segment IDs) to the segments. By performing an unordered list of Adjacency SIDs and Prefix/Node SIDs (destination address prefixes/node segments), a forwarding path is obtained.

True

False

60. The ARP protocol can resolve the MAC address of the target device according to the destination IP address, thereby, to map the link layer address and the IP address.

True

False

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61. The Tracert diagnostic tool records the () of each ICMP TTL timeout message so that the user can be provided with the IP address of the packet when it arrives at the destination.

Destination port

Source port

Destination IP address

Source IP address

62. VLSM can expand any IP network segment, including Class D addresses.

True

False

63. Which fields in the IPv4 header are related to sharding? (Multiple Choice)

Fragment Offset

Flags

TTL

Identification

64. The pwd and dir commands in the VRP operating platform can view the file information in the current directory.

True

False

65. The output information of a router is as follows.

Which of the following statement is correct? (Multiple Choice)

The currently used VRP version file is the same as the VRP file used for the next startup.

The currently used VRP version file is different from the VRP file used for the next startup.

The currently used configuration file is different from the one used for the next startup.

The currently used configuration file is the same as the one used for the next startup.

66. For a switch running STP, the port can be directly converted to the Disabled state in any state.

True

False

67. Which of the following MAC addresses will not age? (Multiple Choice)

Dynamic MAC address

Black hole MAC address

Static MAC address

Port MAC address

68. By default, the bridge priority of a switch is 32768.

True

False

69. Which port of the following switches is blocked as shown in the following figure?

G0/0/2 of SWC

G0/0/1 of SWC

G0/0/3 of SWB

G0/0/3 of SWA

70. As shown in the following figure, all hosts can communicate normally.

What is the correct relationship between the SWBMAC address and the port?

MAC-A G0/0/3 MAC-B G0/0/3 MAC-C G0/0/1

MAC-A G0/0/1 MAC-B G0/0/2 MAC-C G0/0/3

MAC-A G0/0/2 MAC-B G0/0/2 MAC-C G0/0/3

MAC-A G0/0/1 MAC-B G0/0/1 MAC-C G0/0/3

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71. A switch running STP protocol will send TCN BPDUs only when a port on the switch fails.

True

False

72. How many bits of the Port ID total length in the spanning tree protocol?

73. As shown in the figure, the correct description about this network topology is ().

There are 6 collision domains in this network.

There are 6 broadcast domains in this network.

There are 12 collision domains in this network.

There are 2 broadcast domains in this network.

74. Which of the following statements about the Backup port in the RSTP protocol is correct?

Backup port as a backup of the designated port, providing another backup path from the root bridge to the corresponding network segment

Backup port not only forwards user traffic but also learns MAC address

Backup port does not forward user traffic but learns MAC address

Backup port provides another switchable path from the designated bridge to the root as the backup port of the root port

75. A network consisting of switches does not have STP enabled. A Layer 2 loop must occur.

True

False

76. When a port running the standard STP protocol receives a suboptimal BPDU, it immediately sends its own configuration BPDU from this port.

True

False

77. As shown in the following figure, all routers run OSPF protocol. The top of the link is the size of the Cost value.

What is the path of the RA to the network 10.0.0.8/8?

A-B-D

RA can not reach 10.0.0.0/8

A-D

A-C-D

78. Which of the following statements about OSPF neighbor status is correct? (Multiple Choice)

In the Exchange state, the routers send each other a DD packet containing the summary of the link state information to describe the content of the local LSD

The master-slave relationship of OSPF is formed in the ExStart state.

After the router LSDB is synchronized, it is converted to the Full state.

The serial number of the DD packet is determined in the Exchange state.

79. On the network shown in the following figure, the administrator wants Router A to use static routes to send packets to Router B priority through G0/0/1.

Which command can be used to meet this requirement?

ip route-static 10.0.2.2 255.255.255.255 10.0.12.2 ip route-static 10.0.2.2 255.255.255.255 10.0.21.2 preference 40

ip route-static 10.0.2.2 255.255.255.255 10.0.12.2 ip route-static 10.0.2.2 255.255.255.255 10.0.21.2 preference 70

ip route-static 10.0.2.2 255.255.255.255 10.0.12.2 ip route-static 10.0.2.2 255.255.255.255 10.0.21.2

ip route-static 10.0.2.2 255.255.255.255 10.0.12.2 preference 70 ip route-static 10.0.2.2 255.255.255.255 10.0.21.2

80. ip route-static 10.0.12.0 255.255.255.0 192.168.1.1

The correct description about this command is ().

The priority of this route is 100.

This command configures a route to the 192.168.1.1 network.

This command configures a route to the 10.0.12.0 network.

If the router learns the route of the same destination network as this route through other protocols, the router will prefer this route.

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81. Network structure and OSPF partition as shown in the figure, except for R1, routers R2, R3 and R4 are ABR routers of OSPF.

True

False

82. As shown in the configuration, the administrator has configured OSPF on R1, but R1 cannot learn the routes of other routers.

[R1] ospf

[R1-ospf-1] area 1

[R1-ospf-1-area-0.0.0.1] network 10.0.12.0 0.0.0.255

The possible reason is (). (Multiple Choice)

This router is not configured with authentication, but the neighbor router is configured with authentication.

The OSPF process ID is not configured when this router is configured.

The area ID configured by this router is different from the area ID of its neighbor router.

This router does not announce the network connecting neighbors when configuring OSP

83. Which of the following data packets is the OSPF protocol encapsulated in?

HTTP

UDP

TCP

84. Whichi of the following about the default route is correct? (Multiple Choice)

The default route can only be manually configured by the administrator.

In the routing table, the default route appears as a route to the network 0.0.0.0 (the mask is also 0.0.0.0)

There must be a default route in the routing table of any router.

If the destination address of the packet cannot match any destination address of the routing table, the packet will be forwarded by selecting the default route.

85. When configuring a static route on a broadcast interface, you can configure a static route by specifying the next hop address or outbound interface.

True

False

86. Which of the following attributes cannot be used as a parameter to measure Cost?

Delay

sysname

Hop count

Bandwidth

87. As shown in the following figure, Router A and Router B establish an OSPF neighbor relationship. The OSPF process ID of Router A is 1 and the area ID is 0.

Which of the following methods can enable Router B to obtain the route of the network segment where Host A is located? (Multiple Choice)

ospf 1 area 0.0.0.0 network 192.168.1.00.0.0.255 #

ospf 1 import-route direct #

ospf 1 area 0.0.0.0 network 192.168.0.00.0.255.255

ospf 1 area 0.0.0.0 network 192.168.1.2 0.0.0.0 #

88. Which of the following fields does not contain in HELLO packets of OSPF protocol?

Neighbor

sysname

Hello Interval

Network Mask

89. What are the roles of OSPF DR and BDR? (Multiple Choice)

Reduce the number of adjacencies

Reduce the type of OSPF packets

Reduce the time it takes to establish adjacency

Reduce the number of exchanges of link state information

90. Which of the following are routing protocols? (Multiple Choice)

BGP

IPX

OSPF

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91. A company network administrator wants to be able to remotely manage branch network devices.

Which of the following protocols will be used?

VLSM

Telnet

RSTP

CIDR

92. Which of the following message types does DHCP contain? (Multiple Choice)

DHCP ROLLOVER

DHCP DISCOVER

DHCP REQUEST

DHCP OFFER

93. Telnet is based on the TCP protocol.

True

False

94. If the administrator performs the configuration below on the Router, the the host connected to the G1/0/0 interface of the router can obtain what kind of the IP address through DHCP?

The IP address obtained by the host belongs to the 10.10.10.0/24 network.

The host cannot obtain an IP address.

The IP address obtained by the host belongs to the 10.20.20.0/24 network.

The IP address obtained by the host may belong to the 10.10.10.0/24 network, or it may belong to the 10.20.20.0/24 network.

95. What should do when the Access port sends a data frame?

Replace VLAN TAG forwarding

Stripping TAG forwarding

Mark PVID forwarding

Send a message with TAG

96. If the configuration information of a port on a switch is as follows, when this port sent the data frames of which VLAN, the VLAN TAG is stripped?

4,5,6

4,6

1,4,6

1,4,5,6

97. The configuration information of a port on the switch is as follows, when the port sends the data frame of which VLAN TAG is carried, the VLAN TAG is stripped?

98. When a port of the switch sends a data frame carrying the same VLAN TAG and PVID, it must strip the VLAN TAG forwarding.

True

False

99. As shown in the following figure, Router A uses manual link aggregation and adds G0/0/1 and G0/0/2 ports to aggregation group 1.

The incorrct statement about the status of Router A aggregation port 1 is:

Only shut down G0/0/2 of Router B, Eth-Trunk 1 protocol up

Turn off G0/0/1 and G0/0/2 ports on Router B at the same time, Eth-Trunk 1 protocol up

Only shut down G0/0/1 of Router B, Eth-Trunk 1protocol up

Turn off G0/0/1 and G0/0/2 ports on Router B at the same time, Eth-Trunk 1 protocol down

100. In the network shown in the figure, the correct description of the following is:

The network between RTA and SWC is the same collision domain.

The network between SWA and SWC is the same broadcast domain.

The network between SWA and SWC is the same collision domain.

The network between SWA and SWB is the same broadcast domain.

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